A V2O5/conductive-polymer core/shell nanobelt array on three-dimensional graphite foam: a high-rate, ultrastable, and freestanding cathode for lithium-ion batteries.

Chao, Dongliang; Xia, Xinhui; Liu, Jilei; Fan, Zhanxi; Ng, Chin Fan; Lin, Jianyi; Zhang, Hua; Shen, Ze Xiang et al. · Adv Mater · 2014

basic_science · Level V

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Abstract

A thin polymer shell helps V2O5 a lot. Short V2O5 nanobelts are grown directly on 3D graphite foam as a lithium-ion battery (LIB) cathode material. A further coating of a poly(3,4-ethylenedioxythiophene) (PEDOT) thin shell is the key to the high performance. An excellent high-rate capability and ultrastable cycling up to 1000 cycles are demonstrated.